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C2821-25UC/K9, Cisco 2821 Router, 25 CME/CUE Lic/SP Serv/128F/512D

Name: C2821-25UC/K9, Cisco 2821 Router, 25 CME/CUE Lic/SP Serv/128F/512D
SKU: C2821-25UC/K9
Price: 5975 USD
Availability: OutOfStock
Rating: 5 (1 reviews)

Brand: Cisco
Model: C2821-25UC/K9

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11 Questions

List Price: $10,595.00

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$5,975.00

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100% Genuine

Original, factory-verified

3-Year Warranty

Extended, enterprise-grade

24 Years Expertise

Proven, deployment-focused

Condition

Original New · Covered SN

Replacement

C2921-VSEC-SRE/K9

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C2821-25UC/K9, Cisco 2821 Router, 25 CME/CUE Lic/SP Serv/128F/512D

100% Genuine Ready to Ship

$10,595.00

44% OFF

$5,975.00

Overview

Cisco C2821-25UC/K9 Overview

The Cisco C2821-25UC/K9 is an enterprise-class integrated services router tailored for converged voice and data networks. Featuring the PVDM2-32 digital signal processor and AIM-CUE module, it delivers robust integrated call processing for unified communications deployments. With 25 CME/CUE phone licenses, dual Gigabit Ethernet LAN ports, and flexible HWIC and VIC expansion, this Cisco router enables secure VPN, firewall, and QoS services while simplifying branch and SMB voice migration across Asia, Europe, Africa, and North America.

Product Highlights

512 MB

DRAM

2 GbE

LAN Ports

25 lic

Voice UC

Product Applications Scenarios

Enterprise Network

The C2821-25UC/K9 consolidates routing, security, and IP telephony, reducing branch infrastructure costs by simplifying WAN, voice, and data management into a single Cisco platform.

Service Providers

Service providers can deploy this router as CPE, using integrated call processing, VPN, and QoS to deliver managed voice and data bundles with lower on-site equipment complexity.

Public Infrastructure

In public sector sites, integrated firewall, VPN, and voice support help secure branch connectivity and enable resilient telephony without separate PBX hardware.

Product Features Comparison


Model	C2821-25UC/K9, Cisco 2821 Router, 25 CME/CUE Lic/SP Serv/128F/512D	CISCO1941-2.5G/K9, Cisco 1941 Router, 2.5GB DRAM/256MB Flash	C3945-VSEC-CUBE/K9, Cisco C3945 Integrated Services Router, PVDM3-64/UC SEC Lic/FL-CUBEE-25	C2901-WAASX/K9, Cisco C2900 Router, WAASX feature/Max memory
Brand	Cisco	Cisco	Cisco	Cisco
Routing Throughput	n/a	n/a	n/a	n/a
Interface Configuration	2 x 10/100/1000 Mbps LAN Ports; 4 HWIC slots, 1 enhanced VIC slot	Router Interfaces: 1 x 10Base-T/100Base-TX/1000Base-T - RJ-45; Management: 1 x console - RJ-45; Management: 1 x console - mini-USB Type B; Serial: 1 x auxiliary - RJ-45; USB: 2 x 4-pin USB Type A; Expansion Slot(s): 2 (total) / 2 (free) x HWIC; 2 (total) / 1 (free) x CompactFlash Card; 1 (total) / 1 (free) x Expansion Slot	Router Interfaces: 3 x 10Base-T/100Base-TX/1000Base-T RJ-45; Management: 1 x console RJ-45; Management: 1 x console mini-USB Type B; Serial: 1 x auxiliary RJ-45; USB: 2 x USB Type-A (4-pin); 2 x SFP (mini-GBIC); Expansion Slots Total (Free): 4 (4) x HWIC; 3 (2) x PVDM; 2 (1) x CompactFlash Card; 1 (1) x expansion slot	Router Interfaces: 2 x 10Base-T/100Base-TX/1000Base-T (RJ-45); Management: 1 x console (RJ-45), 1 x console (mini-USB Type B); Serial: 1 x auxiliary (RJ-45); USB: 2 x 4-pin USB Type A; Expansion Slots: 4 x EHWIC; 2 x PVDM; 2 x CompactFlash Card; 1 x ISM; Power Device: Internal power supply
Supported Protocol	IPv4/IPv6, MPLS, BGP	Network / Transport Protocol: IPSec, L2TPv3; Routing Protocol: OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing	Network / Transport Protocol: TCP/IP, UDP/IP, RSVP, IPSec, PPPoE, L2TPv3; Routing Protocol: OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR)	Routing Protocols: OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR); Data Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet
VPN Capability	Integrated firewall and VPN	Features: Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED)	Features: Firewall protection, NAT support, VPN support, MPLS support, Syslog support, content filtering, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Quality of Service (QoS), Dynamic Multipoint VPN (DMVPN)	Features: Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED)
Integrated Features	Digital Signal Processor: PVDM2-32; Advanced Integration Module: AIM-CUE; Voice Capabilities: Integrated call processing; Management: Web-based management interface; QoS: Traffic shaping and policing; Compliance: RoHS, UL, CE	Features: Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, CBWFQ, WRED; DRAM Memory: 2.5 GB; Flash Memory: 256 MB (installed) / 8 GB (max)	Features: Firewall protection, NAT support, VPN support, MPLS support, Syslog support, content filtering, IPv6 support, CBWFQ, WRED, QoS, DMVPN; Communications Type: Voice / fax module; VoIP Protocols: H.323, SIP	Features: Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, CBWFQ, WRED; Additional Software: Cisco Wide Area Application Services Express; IOS Software Included: Cisco IOS IP Base

Optional Add-ons

Model Number	Description
PVDM2-32	Cisco PVDM2-32 DSP module providing 32-channel voice processing for Cisco 2800 Series routers
AIM-CUE	Cisco AIM-CUE advanced integration module delivering Cisco Unity Express voicemail and auto-attendant
CISCO2851-HSEC/K9	Cisco 2851 Integrated Services Router security bundle for enhanced VPN and firewall in Cisco voice branches

Quality Certifications

Specification

Cisco C2821-25UC/K9 Specification

Model

C2821-25UC/K9

Brand

Cisco

Digital Signal Processor (DSP)

PVDM2-32

Advanced Integration Module

AIM-CUE

License Type

25 CME/CUE/Ph licenses

Software Package

SP Services

Flash Memory

128 MB

DRAM Memory

512 MB

LAN Ports

2 x 10/100/1000 Mbps

Expansion Slots

4 HWIC slots, 1 enhanced VIC slot

Security Features

Integrated firewall and VPN

Voice Capabilities

Integrated call processing

Management

Web-based management interface

Protocols Supported

IPv4/IPv6, MPLS, BGP

QoS

Traffic shaping and policing

Operating Temperature

0 to 40 °C (32 to 104 °F)

Storage Temperature

-40 to 70 °C (-40 to 158 °F)

Power Requirements

100–240 VAC, 50–60 Hz

Dimensions

17.3 x 16.8 x 1.72 in

Compliance

RoHS, UL, CE

Weight

13.8 kg

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Quality Certifications

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Q&A

Questions & Answers

What accessories are available for the C2821-25UC/K9?

Accessories include additional PVDM2-32 modules, AIM-CUE modules, and various router rack mounts.

How does the C2821-25UC/K9 compare with other Cisco 2800 series routers?

The C2821-25UC/K9 offers integrated unified communications and superior processing power compared to the 2811 but less than the 2851.

What are the memory specifications of the C2821-25UC/K9?

The C2821-25UC/K9 comes with 128MB Flash and 512MB DRAM, supporting efficient data processing and storage for network operations.

Is router-switch.com a reliable distributor?

Absolutely. As a multi-brand authorized distributor, router-switch.com is directly certified by leading technology manufacturers. We guarantee 100% genuine products, competitive pricing, and full manufacturer warranties and support.

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How cost-effective is the C2821-25UC/K9 for small businesses?

The Cisco 2821 ISR provides robust performance and integrated communication options, making it a cost-effective solution for small businesses.

What are the main features of the C2821-25UC/K9 router?

The Cisco 2821-25UC/K9 includes PVDM2-32, AIM-CUE, and supports 25 CME/CUE licenses with SP services, providing high versatility.

In what scenarios can the C2821-25UC/K9 be effectively used?

The C2821-25UC/K9 is ideal for small to medium-sized enterprises needing unified communications and secure networking services.

How do you install the C2821-25UC/K9 router?

Installation involves mounting the device in a server rack, connecting to a network, and configuring through the Web GUI or CLI.

Does the C2821-25UC/K9 require regular upgrades?

Regular firmware updates are recommended to ensure security and performance enhancements for the C2821-25UC/K9.

Are there alternative products to the C2821-25UC/K9?

Alternatives include other models in the Cisco 2800 series, such as the Cisco 2811 or Cisco 2851 ISR routers.

What are common troubleshooting tips for the C2821-25UC/K9 router?

Ensure proper power supply, check network cable connections, and verify configuration settings via the CLI.